A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a work machine driving device capable of decreasing changeover control without requiring a selector valve.SOLUTION: At least two closed circuit hydraulic pumps 2a-2f are configured so as to be connected in a closed circuit to either one of hydraulic actuators 7a-7c, and 10c through a solenoid selector valve 12. A controller 16 includes a priority sequence arithmetic circuit which calculates the allocation of the plurality of closed circuit hydraulic pumps 2a-2f for the hydraulic actuators 7a-7c, and 10c, based on a priority sequence map for setting a priority connection relationship between the operation of control levers 17a and 17b, the plurality of closed circuit hydraulic pumps 2a-2f, and the plurality of hydraulic actuators 7a-7c, and 10c. The priority sequence arithmetic circuit is configured so as to select the unallocated closed circuit hydraulic pumps 2a-2f and allocate, when the allocation number of the closed circuit hydraulic pumps 2a-2f is increased.
【課題】切換弁の不要な切換制御を減少できる作業機械の駆動装置を提供する。【解決手段】いずれか１つの油圧アクチュエータ７ａ〜７ｃ，１０ｃに少なくとも２つ以上の閉回路用油圧ポンプ２ａ〜２ｆが電磁切換弁１２を介して閉回路接続可能に構成され、コントローラ１６は、操作レバー１７ａ，１７ｂの操作と、複数の閉回路用油圧ポンプ２ａ〜２ｆと複数の油圧アクチュエータ７ａ〜７ｃ，１０ｃとの優先接続関係を定めた優先順位マップとに基づき、油圧アクチュエータ７ａ〜７ｃ，１０ｃに対する複数の閉回路用油圧ポンプ２ａ〜２ｆの割り当てを演算する優先順位演算回路を備え、優先順位演算回路は、閉回路用油圧ポンプ２ａ〜２ｆの割り当て数が増加する場合、割り当てられていない閉回路用油圧ポンプ２ａ〜２ｆを選択して割り当てる構成にしてある。【選択図】図２
PROBLEM TO BE SOLVED: To provide a work machine driving device capable of decreasing changeover control without requiring a selector valve.SOLUTION: At least two closed circuit hydraulic pumps 2a-2f are configured so as to be connected in a closed circuit to either one of hydraulic actuators 7a-7c, and 10c through a solenoid selector valve 12. A controller 16 includes a priority sequence arithmetic circuit which calculates the allocation of the plurality of closed circuit hydraulic pumps 2a-2f for the hydraulic actuators 7a-7c, and 10c, based on a priority sequence map for setting a priority connection relationship between the operation of control levers 17a and 17b, the plurality of closed circuit hydraulic pumps 2a-2f, and the plurality of hydraulic actuators 7a-7c, and 10c. The priority sequence arithmetic circuit is configured so as to select the unallocated closed circuit hydraulic pumps 2a-2f and allocate, when the allocation number of the closed circuit hydraulic pumps 2a-2f is increased.
【課題】切換弁の不要な切換制御を減少できる作業機械の駆動装置を提供する。【解決手段】いずれか１つの油圧アクチュエータ７ａ〜７ｃ，１０ｃに少なくとも２つ以上の閉回路用油圧ポンプ２ａ〜２ｆが電磁切換弁１２を介して閉回路接続可能に構成され、コントローラ１６は、操作レバー１７ａ，１７ｂの操作と、複数の閉回路用油圧ポンプ２ａ〜２ｆと複数の油圧アクチュエータ７ａ〜７ｃ，１０ｃとの優先接続関係を定めた優先順位マップとに基づき、油圧アクチュエータ７ａ〜７ｃ，１０ｃに対する複数の閉回路用油圧ポンプ２ａ〜２ｆの割り当てを演算する優先順位演算回路を備え、優先順位演算回路は、閉回路用油圧ポンプ２ａ〜２ｆの割り当て数が増加する場合、割り当てられていない閉回路用油圧ポンプ２ａ〜２ｆを選択して割り当てる構成にしてある。【選択図】図２
WORK MACHINE DRIVING DEVICE
作業機械の駆動装置
TAKAHASHI HIROMASA (author)
2015-06-04
Patent
Electronic Resource
Japanese